Results 1 to 10 of about 315,730 (240)

Michael Aschbacher, The Finite Simple Groups and Their Classification (Yale Mathematical Monographs 7, Yale University Press, 1980) ix + 61 pp., £4.40. [PDF]

Proceedings of the Edinburgh Mathematical Society, 1983
N Dickson
openaire   +2 more sources

ON SOME VERTEX-TRANSITIVE DISTANCE-REGULAR ANTIPODAL COVERS OF COMPLETE GRAPHS

Ural Mathematical Journal, 2022
In the present paper, we classify abelian antipodal distance-regular graphs \(\Gamma\) of diameter 3 with the following property: \((*)\) \(\Gamma\) has a transitive group of automorphisms \(\widetilde{G}\) that induces a primitive almost simple ...
Ludmila Yu. Tsiovkina
doaj   +1 more source

On matrix representations of oversemigroups of semigroups generated by two mutually annihilating idempotents

Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2020
Matrix representations of finite semigroups over fields are studied not so well as for finite groups. Representations of finite groups over fields are studied sufficiently well; in particular, the criterions of representation type are fully defined for ...
В. М. Бондаренко, О. В. Зубарук   +1 more
doaj   +1 more source

Complex group algebras of the double covers of the symmetric and alternating groups [PDF]

, 2015
We prove that the double covers of the alternating and symmetric groups are determined by their complex group algebras. To be more precise, let $n\geq 5$ be an integer, $G$ a finite group, and let $\AAA$ and $\SSS^\pm$ denote the double covers of $\Al_n$
Bessenrodt, Christine, Nguyen, Hung Ngoc, Olsson, Jørn B., Tong-Viet, Hung P.   +3 more
core   +2 more sources

Almost-graded central extensions of Lax operator algebra [PDF]

, 2011
Lax operator algebras constitute a new class of infinite dimensional Lie algebras of geometric origin. More precisely, they are algebras of matrices whose entries are meromorphic functions on a compact Riemann surface.
Schlichenmaier, Martin
core   +1 more source

On the classification of nonsimple graph C*-algebras [PDF]

, 2009
We prove that a graph C*-algebra with exactly one proper nontrivial ideal is classified up to stable isomorphism by its associated six-term exact sequence in K-theory.
C -algebras, Mark Tomforde, Søren Eilers   +2 more
core   +4 more sources

Finite and infinite quotients of discrete and indiscrete groups

, 2018
These notes are devoted to lattices in products of trees and related topics. They provide an introduction to the construction, by M. Burger and S. Mozes, of examples of such lattices that are simple as abstract groups.
Agol, Bestvina, Burger, Camm, Cannon, Chinburg, Dahmani, Davis, Delzant, Dixon, Grigorchuk, Grigorchuk, Gromov, Higman, Higman, Higman, Jacobson, Katz, Kimberley, Kneser, Kuroš, Liebeck, Liebeck, Long, Margulis, Neumann, Neumann, Ol’shanskiĬ, Ol’shanskiĬ, Osin, Platonov, Rapinchuk, Rattaggi, Sageev, Tits, Tits, Wielandt, Wilson, Wilton, Wise, Wise   +40 more
core   +1 more source

Lattices with many Borcherds products [PDF]

, 2015
We prove that there are only finitely many isometry classes of even lattices $L$ of signature $(2,n)$ for which the space of cusp forms of weight $1+n/2$ for the Weil representation of the discriminant group of $L$ is trivial.
Bruinier, Jan Hendrik, Ehlen, Stephan, Freitag, Eberhard   +2 more
core   +1 more source

Block-transitive Steiner t-designs and sporadic simple groups(区传递Steiner t-设计与散在单群)

Zhejiang Daxue xuebao. Lixue ban
The study of t-designs with certain highly symmetric properties and the classification of their automorphism groups is one of the important topics of algebraic combinatorics.
庞璇(PANG Xuan), 詹小秦(ZHAN Xiaoqin)   +1 more
doaj   +1 more source

A 2-local characterization of M(12) [PDF]

, 2003
A characterization of the Mathieu group M(12) is established; the characterization is used by Aschbacher and Smith in their classification of the quasithin finite simple ...
Aschbacher, Michael
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